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Probing neutrino mass with displaced vertices at the Tevatron

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Probing neutrino mass with displaced vertices at the Tevatron

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dc.contributor.author	De Campos, F.
dc.contributor.author	Éboli, O.J.P.
dc.contributor.author	Magro, M.B.
dc.contributor.author	Porod, Werner
dc.contributor.author	Restrepo, Diego
dc.contributor.author	Furtado Valle, José Wagner
dc.date.accessioned	2015-09-30T12:02:37Z
dc.date.available	2015-09-30T12:02:37Z
dc.date.issued	2005
dc.identifier.citation	De Campos, F. Éboli, O.J.P. Magro, M.B. Porod, Werner Restrepo, Diego Furtado Valle, José Wagner 2005 Probing neutrino mass with displaced vertices at the Tevatron Physical Review D 71 7 075001-1 075001-9
dc.identifier.uri	http://hdl.handle.net/10550/47496
dc.description.abstract	Supersymmetric extensions of the standard model exhibiting bilinear R-parity violation can generate naturally the observed neutrino mass spectrum as well mixings. One interesting feature of these scenarios is that the lightest supersymmetric particle (LSP) is unstable, with several of its decay properties predicted in terms of neutrino mixing angles. A smoking gun of this model in colliders is the presence of displaced vertices due to LSP decays in large parts of the parameter space. In this work we focus on the simplest model of this type that comes from minimal supergravity with universal R-parity conserving soft breaking of supersymmetry (RmSUGRA). We evaluate the potentiality of the Fermilab Tevatron to probe the RmSUGRA parameters through the analysis of events possessing two displaced vertices stemming from LSP decays. We show that requiring two displaced vertices in the events leads to a reach in m_{1/2} twice the one in the usual multilepton signals in a large fraction of the parameter space.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2005, vol. 71, num. 7, p. 075001-1-075001-9
dc.subject	Física
dc.title	Probing neutrino mass with displaced vertices at the Tevatron
dc.type	journal article	es_ES
dc.date.updated	2015-09-30T12:02:38Z
dc.identifier.doi	10.1103/PhysRevD.71.075001
dc.identifier.idgrec	026115
dc.rights.accessRights	open access	es_ES